This week in Washington (17 images)

The indictment of Paul Manafort, President Trump's former campaign adviser, rocks Washington, D.C., this week. Also, social media executives testify before Congress and Trump pushes tax reform with resistance from Sen. Chuck Schumer. Here are some highlights from the week of October 30, 2017 in the nation's capital.

President Donald Trump and first lady Melania Trump celebrate Halloween with children and parents from Maryland, Virginia and the District of Columbia, as well as military families and community organizations on the South Lawn of the White House on Monday. Photo by Pete Marovich/UPI

From left to right, Secretary of State Rex Tillerson, Senate Foreign Relations Committee Chairman Sen. Bob Corker and Secretary of Defense Jim Mattis walk to a Senate Foreign Relations Committee hearing on the authorization of military force Monday on Capitol Hill. Photo by Erin Schaff/UPI

Kevin Downing, Paul Manafort's lawyer, leaves the Federal District Court after Manafort pleads not-guilty to money laundering and other charges on Monday. Manafort served as Trump's campaign manager for the 2016 presidential campaign. Photo by Erin Schaff/UPI

San Juan Mayor Carmen Yulin Cruz speaks to media, with Rep. Luis Gutierrez, D-Ill., on her right, after meeting with the House Democratic Caucus about the situation in Puerto Rico on Capitol Hill. The island is still recovering from a recent hurricane. Photo by Erin Schaff/UPI

Sen. Lindsey Graham, R-S.C., speaks about why the suspect in the New York City vehicle attack should be held as an enemy combatant during a news conference on Capitol Hill on Wednesday. Eight people were killed in the attack on Tuesday as a vehicle sped down a bike path in New York City. Photo by Erin Schaff/UPI